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Selective and Sensitive Fluorescence Chemosensor for the Hypochlorite Anion in Water.
- Source :
-
Journal of Fluorescence . Sep2012, Vol. 22 Issue 5, p1257-1262. 6p. - Publication Year :
- 2012
-
Abstract
- Based on an oxidized irreversible ring-opening process of the spirolactam of rhodamine 6G to turn on the fluorescence pathway, a highly sensitive, selective fluorescent and easy accessible chemosensor for ClO has been reported. Upon reaction of the chemosensor with ClO ions, a fluorescent enhancement factor over 60-fold is observed. The chemosensor shows a remarkably high selectivity to discriminate between ClO and other ROS, such as HO, TBHP etc., and a wide range of the environmentally and biologically relevant anions and metal ions. The oxidized irreversible ring-opening process of the chemosensor also triggers a visible colorimetric change from colorless to pink, leading to production of both 'naked-eye' and fluorimetric detection of ClO anion. The detection limit is estimated to be 2 × 10 M based on a signal-to-noise ratio of 3:1 method. The chemosensor can be used within a pH span of 6-11.5. The chemosensor also shows excellent performance in natural water samples. [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10530509
- Volume :
- 22
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Fluorescence
- Publication Type :
- Academic Journal
- Accession number :
- 79356128
- Full Text :
- https://doi.org/10.1007/s10895-012-1066-9